All you know about jammer is that it is only a device that can shield the signals from mobile phone, GPS and WiFi. You will ask me :"Am I wrong?" No, you arr right, but I would like to say that you just have an imperfect understanding about jammers. And as an old saying: A little knowledge is a dangerous thing. That is the point!
As a matter of fact, jammer could not only protect your privacy as we have mentioned before but it could help you out of danger and keep your safety. Why? Because the GPS. You will ask:"I think you are mistaken! It is right the GPS navigation which helps us to draw up the right route so that we will not get lost. " Yeah, you are right, but have you ever think of that most accidents happened just because the GPS! Because the GPS system is not that perfect and sometimes it will make some mistakes, in some cases, the small mistakes do not matter, however, occasionally the small mistake will cause fatal hurts!
For the sake of your life and your dear family, you should not only depend on GPS, and you can buy a gps jammer to help yourself. Because a gps jammer sufficient power to take out GPS around you! You deserve it!